Labels:book | clock | crt screen | hakham | monitor | plaything | sky OCR: 5-16 COMPUTER ARCHITECTU R.F How does the ALU get its data and h ow does it which arithmetic Or logical opera- tion must perform? The control unit directs and coordinates processing The control unit retriev es each instruction in sequence from RAM pue places : it in a special instruction register The control unit then interprets the instruction to find out what needs to be done According to its interpretation, the control unit sends signals 1 to the data busto fetch data from RAM and to the arithmetic logic unit to perform process The control makes significant contribution to proce essing efficiency. It is analogous to the director on movie set because executes series of instructions just as director follows script. The control unit directs the movement . data just director positions actor ...
